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Volume 42 , Issue 3
May/June 2022
Pages e75–e83

Assessment of a Novel Alveolar Ridge Preservation Concept in Dehiscence Sockets: A Pilot Study

Cho-Ying Lin, DDS/Zhaozhao Chen, DDS, MS/Whei-Lin Pan, DDS/Hom-Lay Wang, DDS, MS, PhD

PMID: 35472116
DOI: 10.11607/prd.5528

In this prospective pilot study on ridge preservation (RP), a collagen sponge was placed to fill the bottom half of the socket, followed by a sequence of bone graft, collagen membrane, and a sponge placed on top. Twelve patients with 13 hopeless posterior teeth were included. Changes in bone dimension (including variations of horizontal ridge width [HRW] and bone height [BH]) between the time immediately postextraction (T₀) and 6 months later (T_6M) were evaluated through CBCT. The soft tissue was assessed using a wound healing index (WHI) at 2 weeks (T_2W), 2 months (T_2M), and 6 months (T_6M) postsurgery. Measured at three parallel levels (1, 3, and 5 mm apical to the crest of the palatal plate), the mean HRW changes (T₀ to T_6M) ranged from 0.47 to 1.05 mm. Statistically significant negative correlations were observed between WHI (T_6M) and midcrestal BH change. This proposed RP technique showed favorable outcomes regarding HRW and BH, even in periodontally compromised dehiscence sockets.

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